Interchangeable stippling roller



March 11, 1941. c. A. HARPOOTLIAN mTERcnAueEALE STIPPLING ROLLER FiledAug. 28, 1940 IN VEN TOR A TTORNE Y CARNIG A- HAR POOTLIAN Patented Mar.11, 1941 UNITED STATES PATENT OFFICE INTERCHANGEABLE STIPPLING ROLLERApplication August 28,

2 Claims.

This invention relates to roll-stipplers having replaceable frictionallysupported cardboard tubes covered all over its outer surface with ayielding material such as carpet, rubber, and the like, and used inimpressing designs on coated surfaces, particularly on building wallsbeing painted.

An object of this invention is to provide a rotatably mounted rollcarrier or supporting member made of metal and having a yieldablycovered tube removably secured on said carrier, the said tube beingeasily removed when covered with paint and a clean tube mounted on thecarrier.

Another object of this invention is to impregnate the cardboard tubeswith a chemical such as glycerin or other repellent of paint removingliquids such as benzlne or turpentine to prevent softening anddestruction of the tubes.

Another object of this invention is to provide a stippling rollersupported on end members having resilient action and being therebyadapted to stipple uneven surfaces.

With the above and other objects in view, the invention will behereinafter more particularly described, and the combination andarrangement of parts will be shown in the accompanying drawing andpointed out in the claims which form part of this specification.

Reference will now be had to the drawing, wherein like numerals ofreference designate corresponding parts throughout the several views, inwhich:

Figure 1 is a central cross-sectional view of the roller carrier.

Figure 2 is a cross-sectional view, the section being taken as on line2-2 in Figure 1.

Figure 3 is a plan view of the stippling roller, partly brokenaway toshow the interior of the roller.

Figure 4 is a cross-sectional view, the section being taken as on linefl--4 in Figure 3.

Figure 5 is a fragmentary cross-sectional view of a modified rollercarrier.

Figure 6 is a side elevation, on a reduced scale, of the roller carrierand a guard, the roller being removed.

Figure '7 is an end view of the roller carrier and guard shown in Figure6.

Figure 8 is a fragmentary portion of the shank, showing means forsupporting the guard member.

In the illustrated embodiment of the invention, the numeral l indicatesa tubular roller carrier comprising a thin metal casing ll havingdishshaped end members l2, l2, made of metal and 1940, Serial No.354,624

(Cl. ll-5.5)

being fixedly secured at opposite ends of the casing.

Each end member l2 has a central aperture l3 designed to receive reducedbearing portions of an axle M on which the tubular carrier H is mountedfor free rotation. Each end member l2 has a flange l which causes theend members to remain in mechanically interlocked relation with thetubular casing and so that the axle is at all times freely rotatablymounted in relation 10 to the casing.

As best shown in Figure 1, each end member I2 is positioned within thecasing in a manner to provide a large central opening 16 serving tohouse threaded ends l1, ll, of the axle l4. Each end l'l terminatesinwardly of one of the end faces of the casing ll. One threaded end llof the axle M has a wing nut l8 threaded thereon.

As shown in Figures 3 and 4, I have provided a stippling roller 20comprising a cardboard or 20 other fibrous tube 2| having a sheet ofyieldable material 22 cemented thereto in unitary relation. The cementedsheet material 22 may be carpet having cord-like nap 23 which is adaptedto stipple freshly painted surfaces without absorb- 25 ing the paint orspattering it.

It is to be noted that while I have shown in the drawing a carpetcovered fibrous stippling roller designed for stippling paintedsurfaces, that I may employ rubber covered fibrous tubes or coveringmembers having plain, corrugated, or comb-like outer surfaces forsmoothing or design imprinting surfaces to be decorated.

It has been customary heretofore to make stippling rollers integral withthe roller carrier. In practice, it is found necessary to have anassortment of stippling rollers of various lengths, which is a detrimentwhen the painter has to move his tools from one location to another.With the removable and interchangeable struc- 4O ture herein described,the roller may be readily removed from the carrier for cleaning thepaint from the roller. This cleaning operation is done by placing theroller in turpentine or in benzine or into another chemical which candissolve and remove paint.

In order to prevent the cardboard or fibrous absorbent tube 2| fromswelling when dipped in paint remover, I impregnate the said tube withglycerin or similar chemical which is a repellent to paint dissolvingliquids.

Figure 5 is a fragmentary cross-sectional view of a roller carrier 25having modified end members 26 made of molded rubber having a resilientaction transverse to the axle Id. The

side wall of the member 26 may have apertures 21. This resilient actionis particularly desirable when stippling on omamenting walls havinguneven surfaces. The rubber members 26 absorb the shocks when operatingthe roller at high speed.

Figures 6 and 7 show an assembled roller carrier I supported on 'amulti-membered shank integral with the handle 30. It will be noted thatthe upper portion of the shank consists of a bent member 3|, theuppermost end of which is horizontal and has a threaded aperture 32. Theaperture 32 is adapted for threaded engagement with one of the threadedends I! of the axle l4.

The lower portion 33 of the shank is positioned crosswise of the rollerand forms a threadably separable portion 34, best shown in Figure 8. Theshank portion 33 has a threaded extension 35 designed to enter athreaded aperture in the crosswise lowermost portion 36 of the shankmember 3|.

An elongated member 31, of semi-circular cross-section, has an aperturefor engagement with the separable portion 34 of the shank members, andwhen in the fixed operative position below the roller 20, the member 31provides a guard for the entire lower half of the roller.

It is to be noted that I intend to use a number of sets of rollercarriers and rollers or covering members, such as parts numbered I 0,and 20, each set being of a difierent length. These sets of rollercarriers and removable yieldably covered rollers can be operated withthe same handle 30 and with the same shank members 3| and 33. I havefound it necessary to make the horizontal lengthwise portion 38 of themember 3| less than half the length of the longest roller, so that thehandle 30 will not be in the middle of the longest roller, and so thatwhen a short roller is used the handle will be beneath said roller andnot in offset relation.

In assembling a roller carrier and handle, the user aligns the threadedaperture 32 of the shank member 3| with one of the threaded ends I! ofthe axle l4 and engages the wing nut l8 and rotates the axle and therebybrings the said members into operative engagement.

In assembling a metal casing H and two end members l2 for integralconnection, I preferably center punch the outer surface of the casingagainst the end members to interlock these members.

In accordance with the patent statutes I have described and illustratedthe preferred embodiment of my invention, but it will be understood thatvarious changes and modifications can be made therein without departingfrom the spirit of the invention as defined by the appended claims.

I claim:

1. In an interchangeable stippling roller mechanism, comprising atubular roller carrier, an axle, said roller carrier having dish-shapedand centrally apertured end members mounted therein and being rotatablymounted on said axle, each of said end members having a flange and beingin interlocked relation with said roller carrier, said axle terminatingshort of the end faces of said roller carrier, said axle having threadedends, a tubular stippling covering member having an internal diameteradapted to frictionally and removably engage said carrier, a handlehaving means for threaded attachment solely to one of said threaded endsof said axle, said roller carrier being thereby unobstructed at one endto permit quick removal and replacement of covering members of variouslengths thereon, said end members being resilient in a directiontransverse to said axle and thereby adapting said stippling roller tostipple uneven surfaces.

2. In an interchangeable stippling roller mechanism, comprising a rollercarrier, an axle, said roller carrier having dish-shaped and cent-rallyapertured end portions and being rotatably mounted on said axle, each ofsaid end members having a flange and being in interlocked relation withsaid roller carrier, a tubular stippling covering member havingcord-like nap and having an internal diameter adapted to frictionallyand removably engage said roller carrier, a handle forming acontinuation of one end of said axle, said roller carrier being therebyunobstructed at one end to permit quick removal and replacement oftubular stippling covering members of various lengths thereon.

CARNIG A. HARPOOTLIAN.

